Add the additional Crest. You will always know that you can keep 2/3 of the rig running is one fails. Plus, the limiting will be the same across the board. +1 You never want to be in the middle of a gig testing for potential faults or strange behaviour - you switch straight to your backup plan.

Hi David, According to these specs: https://www.beyma.com/getpdf.php?pid=12LX60V2 it's Fs, Qts and Xmax are all good. Fs is on the high side but still within Bill's tolerances. Delivering 500cc, the same as a 3012LF, it might be a good buy for £140. I have seen the 3012LF for £165 which is a proven ...